condition mean min max Sterile Leaflet 1.4258766666666667 0.78801 2.10089 Fertile Leaflet with Sori 4.81971 1.41637 7.41051 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0